Which of the following is the primary cause of change in regional metamorphism? pressure

1 answer:

7 0

The primary cause of change in regional metamorphism is pressure. Usually rocks subjected to high pressures at considerable depth within the earth's crust will exhibit regional metamorphism like the widespread phyllites, schists, gneisses and migmatites of the Canadian Precambrian Shield for example. A phyllite is the next higher metamorphic stage than a slate, a schist is a further stage and gneiss and migmatites are of the highest grade of regional metamorphism. On the other hand, contact metamorphism usually depends more on the effect of heat from an igneous intrusion say converting a limestone to a marble (more coarse grained than limestone usually).

You might be interested in

What country is approximately located at 22°N and? 73°W

IRINA_888 [86]

Answer:

The Bahamas is at 22°N and 73°W

7 0

2 years ago

Brittany wants to use a model to study soil erosion on hills. She is told that farmers can prevent soil erosion by plowing so th

Diano4ka-milaya [45]

Answer:

D. set it outside and check on it every day

Explanation:

In order for Brittany to be able to study the soil erosion by using a simplified method of what the farmers do on the slopes to minimize it, she will need to take the pan, leave it outside, and check on it every day. By having the required shape, the soil will give somewhat an example of the soil on the slopes that has been plowed so that the furrows run along the hills. Since the hills do not move or tilt, the pan with the soil should be stable, static. Being put outside, it will be exposed to the natural conditions that cause the erosion, such as the water and wind. Brittany will need to check upon the soil every day and make detailed notes and measurements to see what the erosive effects are on it.

6 0

3 years ago

Read 2 more answers

Dynamothermal (regional) metamorphism occurs when ________. A. rock becomes deeply buried during continental collision and mount

ludmilkaskok [199]

Answer:

Dynamothermal (regional) metamorphism occurs when (A) rock becomes deeply burried during continental collision and mountain building.

Explanation:

4 0

2 years ago

Read 2 more answers

When a seismic wave crosses a boundary, it will change directions in the process of _______?

svlad2 [7]

<span>the answer to this question is refraction</span>

3 0

3 years ago

Read 2 more answers

Deep reservoirs of ______ can be accessed using hydraulic fracturing where a fluid is injected under high pressure to break rese

zavuch27 [327]

Hydraulic fracturing using high pressure liquids to break rocks can be used to access deep reservoirs of <u>crude oil. </u>

<h3>What is the use of hydraulic fracturing?</h3>

In a process known as fracking, hydraulic fracturing is done when a fluid is injected into rocks far below the surface.

The aim of this process is to get the rocks to break apart which would then allow the deep reserves of oil to be accessed. This is a major process of crude oil production in the United States.

Find out more on fracking at brainly.com/question/24561007.

3 0

2 years ago